Cleveland Controls 6650 Manuale utente

Instruction Manual DM-6650.02

CLEVELAND CONTROLS

MODEL 6650

DIGITAL MANOMETER

INSTRUCTION MANUAL DM-6650.02

Instruction Manual DM-6650.02 2

TABLE OF CONTENTS

I.0 INTRODUCTION 3

1.1 General Description.....................................................................3

1.2 Specications ..............................................................................3

1.3 Unpacking....................................................................................4

1.4 Operator Controls........................................................................5

1.5. Connections................................................................................5

1.6 Initial Checkout............................................................................6

2.0 OPERATION 7

2.1 Continuity Testing ........................................................................7

2.2 Pressure Measurement ...............................................................8

2.3. Analog Output Circuit..................................................................8

2.4 Nickel-cadmium Battery Pack......................................................8

2.5 Field Maintenance .......................................................................9

FIGURES

Figure 1: Model 6650 Digital Manometer.........................................10

Figure 2: Integrated Pressure Sensing System...............................10

Figure 3: Continuity Testing & Calibration of a Sensing Switch.......12

Instruction Manual DM-6650.02

I.0 INTRODUCTION

1.1 GENERAL DESCRIPTION

The Cleveland Controls Model 6650 Digital Manometer provides

accurate measurement of differential pressure up to 10" wc. Pressure

readings are digitally displayed on the 3-½ digit LCD display, in two

common engineering units (Inches H2O and kPa). High and low

air sample ports located on the front of the instrument accept ¼"

ID exible tubing. Included with the manometer is a 10-foot (10')

length of exible vinyl tubing, to be cut following guidelines in this

manual. The manometer is compatible with air and other dry, clean,

non-corrosive gases that will not attack polyester, vinyl, silicone, or

silicone-based adhesives.

In addition, an electrical continuity test circuit is provided for

convenient testing and calibration of pressure sensing switches. NO,

NC, and COM continuity test connections, plus red and green LED

indicators, are located on the front panel. A 3-prong continuity test

cord, six-feet (6') long is included with the manometer.

An analog output signal (0-1 VDC) is provided to permit remote

pressure recording or monitoring. Analog output terminals are located

on the rear panel.

The manometer is powered by a internal rechargeable battery

pack. It can also be connected to an AC line via the power receptacle

located on the rear panel and the provided AC cord.

The Model 6650 Digital Manometer is factory calibrated and

requires no routine maintenance.

1.2 SPECIFICATIONS

Range: 0–10.00" wc

Units of Measurement: 0.0–10.00" wc; 0.0–2.49 kPa; 0.0–1.999" wc;

0.0–0.497 kPa.

Maximum Pressure Input: 5 psi.

Over Range Indication: Digit blanking.

Accuracy: ±1.5% full scale, ±1 digit, typical at 77 ºF (25 ºC).

Temperature Error: ±0–0.014%/ºF, typical; ±0–0.025%/ºC, typical.

Ambient Temperature Limits: 40–122 ºF (5–50 ºC).

Instruction Manual DM-6650.02 4

Analog Output: 0–1 VDC.

Operator Controls: Power On/Off, Zero Adjustment; Pressure-units

Selector; Display Hold.

Display: 3-½ digit LCD with low battery indication.

Settling Time: 5 seconds.

Pressure Input Connection: ¼" ID exible tubing.

Continuity Connection: ⅛" miniature banana jacks with test cable.

Analog Output Connection: 5-way miniature binding post (⅛").

Power Input Connection: IEC universal connector with cord.

Power Requirements: 120V, 50/60 Hz., 4W.

Battery Pack: Rechargeable nickel-cadmium.

Operating Time: 15 hours maximum from full charge.

Recharging Time: 16 hours maximum.

Media: Dry, clean gases that will not attack polyester, vinyl, silicone,

or silicone-based adhesives.

Case: Black, high-impact plastic with tilt handle.

1.3 UNPACKING

The shipping carton contains the following items:

• Model 6650 Digital Manometer

• AC cord set (P/N 27560)

• Transparent exible vinyl tubing, ¼" ID, ⅜" OD, 10' length

(P/N 25781)

• 3-prong continuity test cord, 6' long (P/N 27636)

• Aspiration probe,12" (P/N 31309)

• Impact probe, 12" (P/N 31310)

• Instruction Manual DM-6650.xx

Conrm that each of these items is in the carton. If any item is

missing or damaged, please call Customer Service at (216) 398-

0330.

Instruction Manual DM-6650.02

1.4 OPERATOR CONTROLS

All operator controls are located on the front panel.

• The Zero Control is a single-turn potentiometer used to set

the display to “000” when no differential pressure is present at

the inputs.

• The Power Control is a double-action pushbutton switch that

controls the AC line and battery power. Power is “ON” when

the switch is pushed in. Power is “OFF” when the switch is

depressed again and returns to the out position.

• The Hold Control is a double-action pushbutton switch. The

pressure reading freezes at the moment the switch is pushed

to the “in” position. Depressing the switch a second time

releases the hold.

• The Unit Selection Controls are four pushbutton switches

used to select the unit of measurement displayed. They are

interlocked so that only one can be in the “in” position at a time

ensuring that only one unit of measurement can be selected

for display.

1.5. CONNECTIONS

Connections are located on the front and back panels.

• Pressure Input Connections are made to the HI and LO

pressure ports located on the front panel. The ports are

designed to accommodate ¼" ID exible vinyl tubing (supplied

with the Digital Manometer).

• Electrical Continuity Test Circuit Connections are

the ⅛" miniature banana jacks located on the front panel.

Connections are made with the test cable included with the

Digital Manometer.

• Analog Output Terminals are the ⅛" binding posts located

on the back panel. They accept ⅛" miniature banana plugs, tip

jacks, or wire leads to provide output for a remote recording or

monitoring device (not included).

• AC Power Receptacle is located on the rear panel and

accepts the AC cord included with the Digital Manometer.

Instruction Manual DM-6650.02 6

1.6 INITIAL CHECKOUT

1.6.1 Connect the power cord.

1.6.2 Press the ON-OFF switch to the “ON” position and push

the desired unit of measurement switch.

1.6.3 When the display appears, adjust the Zero Control until it

reads “0.00”.

1.6.4 Apply a known pressure to the HI port and conrm that

a pressure reading appears. An alternative method is to

press a nger tightly over the HI port. The air in the port

will be compressed sufciently to produce a reading.

1.6.5 Plug the continuity test cable into the three test jacks.

Connect each color-coded wire to the matching, labeled

jack.

1.6.6 Touch the Normally Open (NO) wire to the Common (C)

wire, and conrm that the NO LED (red) lights up.

1.6.7 Touch the Normally Closed (NC) wire to the Common (C)

wire, and conrm that the NC LED (green) lights up.

Instruction Manual DM-6650.02

2.0 OPERATION

2.1 CONTINUITY TESTING

2.1.1 Prove circuit integrity, check and calibrate sensing switches

using the continuity testing capability of the Digital

Manometer. Note: When testing an installed switch,

rst disconnect the power source from the switch

to avoid shock hazard and damage to the continuity

tester.

2.1.2 The continuity circuit consists of two LED’s and a series

resistor in open circuit condition. Continuity between

COMMON (C) and either Normally Open (NO) or Normally

Closed (NC) illuminates the red (NO) or green (NC) LED.

2.1.3 A non-resistive ⅛ amp fuse is located in the power supply

connection to protect the battery and manometer circuits

if the continuity circuit is inadvertently connected to AC

power or any other high potential source.

2.1.4 To determine the pressure at which a sensing switch opens

or closes, connect the continuity test cable to the three

continuity jacks on the front panel of the manometer (see

Section 1.6, above).

2.1.5 Connect the color-coded wires of the test cable to the

sensing switch contacts. Be sure to connect the common

wire (C) to the common contact, the normally open (NO)

wire to the normally open contact, and the normally closed

(NC) wire to the normally closed contact.

2.1.6 Connect the manometer’s pressure inputs in parallel

with the switch. Press the manometer’s ON/OFF switch

to the ON position, and push the 0-10 In. H2O unit of

measurement switch. When the display appears, adjust

the ZERO control until it reads “0.00.”

2.1.7 At pressures below the sensing switch set point, the green

LED (NC) will be on, indicating that this circuit is closed.

The red LED (NO) will remain off.

2.1.8 At the switch’s set point, as indicated on the manometer,

the green NC LED will go out and the red NO LED will

come on.

Instruction Manual DM-6650.02 8

2.2 PRESSURE MEASUREMENT

2.2.1 The measuring element in the Model 6650 Digital

Manometer is a piezoresistive pressure transducer. The

transducer has a full scale input range of 0-10” wc and a

linear output of 1-6 VDC.The Digital Manometer can be

used to measure gauge or differential pressures or

vacuums.

2.2.2 To measure gauge pressure, connect the pressure source

to the HI input. Leave the LOW input open to atmosphere.

2.2.3 To measure differential pressure, connect the higher

pressure source to the HI input and the lower pressure

source to the LOW input. If a negative reading is displayed,

reverse the high and low pressure sources.

2.2.4 To measure gauge vacuum, connect the vacuum source

to the LO input. Leave the HI input open to atmosphere.

2.2.5 To measure differential vacuum, connect the lower

vacuum source to the LOW input and the higher vacuum

source to the HI input.If a positive reading is displayed,

reverse the high and low pressure sources.

2.3. ANALOG OUTPUT CIRCUIT

2.3.1 The analog output circuit is a differential amplier with a

gain of x 1n.

2.3.2 The differential 0-5 volt signal on the main PC assembly

is connected to an adjustable attenuator, which is set to

provide a 0-1 volt signal to the differential amplier.

2.3.3 This provides a buffered 0-1 volt signal for remote

monitoring or recording.

2.4 NICKEL-CADMIUM BATTERY PACK

2.4.1 The internal rechargeable battery pack provides for

cordless operation. When fully charged, it will operate for

15 hours before recharging is required.

2.4.2 To charge the battery, connect the manometer to the AC

line with the manometer turned OFF. Charging time is 16

hours from fully discharged to fully charged. Additional

charging is not harmful.

Instruction Manual DM-6650.02

2.4.3 For maximum battery life, the battery should be fully

discharged and recharged every 3 months.

2.4.4 When the battery voltage drops below 10V, the “LO

BAT” symbol lights up on in the display.

2.5 FIELD MAINTENANCE

2.5.1 The Model 6650 Digital Manometer is a solid state

device with no moving parts and no scheduled

maintenance requirements other than the battery

charging procedure described in Section 2.4.

2.5.2 The manometer is factory calibrated and does not

require additional eld calibration.

2.5.3 Do not exceed the maximum pressure rating (5 psi).

2.5.4 Use only with compatible media: dry, clean gases that

will not attack polyester, vinyl, silicone, or silicone-

based adhesives.

Instruction Manual DM-6650.02 10

A. Digital Readout: 3-½ digit liquid crystal display.

B. Field calibration to null readout.

C. Continuity tester to verify circuit integrity.

D. Air sample ports accept ¼" ID exible tubing.

E. Operation selector allows various conversion factor readings.

HOLD freezes the readout for value comparison.

F. Analog output terminals for remote recording or monitoring.

G. 110 V AC power line receptacle.

H. Rechargeable nickel cadmium battery pack.

Figure 1: Model 6650 Digital Manometer

Figure 2 (facing page): Digital Manometer/Integrated Pressure-Sensing

System Connect the NO, NC & COM terminals on the air switch to the NO, NC &

COM terminals on the manometer.

2. Tubing: Connect the HI side of the air switch to the HI side of the manometer.

Connect the LOW side of the air switch to the LOW side of the manometer.

3. Tubing from manometer to “T” tting and tubing from air switch to “T” tting must

be the same length. Also, keep these pieces as short as possible.

4. The tubing connecting the probe(s) to the tee(s) can be a different length. The

manometer ships with a 10 ft. piece of tubing to be cut as needed. Illustration is not

to scale!

Indice

Altri manuali Cleveland Controls Strumento di misura

Cleveland Controls

Cleveland Controls A-08740 0 Series Manuale utente

Manuali Strumento di misura popolari di altre marche

Suaoki

Suaoki D40 Manuale utente

Elster

Elster BK-G1.6 Manuale utente

Endress+Hauser

Endress+Hauser Deltabar FMD71 Manuale

Duratool

Duratool D03128 Manuale utente

Vega

Vega VEGAPULS 65 Manuale utente

Tonghui

Tonghui TH2618B Manuale utente

Tenmars

Tenmars TM-801 Manuale utente

MSR

MSR 145 Manuale utente

TPS

TPS WP-82 Manuale utente

ELMETRON

ELMETRON CP-511 Manuale utente

PCB Piezotronics

PCB Piezotronics 003C30 Manuale utente

Tenma

Tenma 72-10465 Manuale utente

Endress+Hauser

Endress+Hauser Proline Promag 50 Specifiche tecniche

Siemens

Siemens SITRANS F Coriolis FCT030 Manuale elenco delle parti

KLINGER

KLINGER CMF V Series Manuale utente

EXFO

EXFO FTB-2 Manuale operativo e di manutenzione

Keysight

Keysight M8290A Manuale utente

ADTEK

ADTEK MW-5 Manuale utente