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Dwyer Series 620 |
| Differential
Pressure Indicating Transmitter |
| 4-20mA
Signal, 2-wire operation. Dial Gauge Indication. |
The
Series 620 Pressure Indicating Transmitter is a 1/16 DIN instrument
for measuring, controlling and indicating positive, negative
or differential pressures of air and compatible gases. Pressure
measurements are displayed on an easy-to-read 3 ½ digit
display and converted to a standard 4-20 mA output signal.
Versatile circuit design enables use in 2, 3 or 4-wire current
loops.ses. |
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| -- PHYSICAL DATA |
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- Pressure Connections:Barbed for 1/8" (3mm) I.D. tubing
- Media Compatibility:Air and non-corrosive gases
- Electrical Connections:Terminal block
- Housing:PVC type I
- Weight:8.5 oz (241 g)
- Adjustments:Accessible potentiometers
ELECTRICAL
- Power Supply:10 - 35 VDC (2, 3 or 4-wire); 16 - 26 VAC
(4-wire)
- Output Signal:4-20 mA DC (limited @ 38 mA DC)
- Loop Resistance:0-1300 DC max, 0-1200 AC max
- Current Consumption:38 mA max (DC), 76 mA max (AC)
PERFORMANCE AT 70°F (21°C)
- Zero Output:4 mA DC
- Full Span Output:16 mA DC
- Accuracy:±0.5% F.S.O. (includes linearity, hysteresis,
and repeatability)
- Span & Zero:Adjustable to 0.5% of full span
- Warm-up Time:10 minutes
ENVIRONMENTAL
- Operating Temperature:20 to 120°F (-6.7 to 49°C)
- Thermal Errors: ±0.02% per °F typical
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| -- MODELS NUMBERS (stock shown in bold) |
| Model Number |
Range |
Max. Pressure |
| 620-3 |
0-3 in. w.c. |
5 psig |
| 620-6 |
0-6 in. w.c. |
5 psig |
| 620-10 |
0-10 in. w.c. |
5 psig |
| 620-20 |
0-20 in. w.c. |
11 psig |
| 620-40 |
0-40 in. w.c. |
11 psig |
| 620-100 |
0-100 in. w.c. |
29 psig |
| 620-200 |
0-200 in. w.c. |
29 psig |
| 620-1000 |
0-1000 in. w.c. |
150 psig |
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