Transmitter Index
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Transmitter Index |
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634ES Pressure Transmitter |
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Ordering Information/Ranges |
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The 634ES
transmitters
sense a single pressure of air, compatible gas or liquid and produce a
standard 4-20 mA output signal. Sensitive silicon strain gage measures
within ±0.5% F.S.O.
Each unit comes factory pre-set and can be re-ranged in the field, within a wide upper and lower limit. Convenient 2-wire operation simplifies installation and expands application versatility over comparable 3 or 4 wire units. Zero and span adjustments are fully protected inside a rugged die cast aluminium housing with durable grey polyurethane finish. Enclosure is designed to meet NEMA 4X requirements. |
| Maximum Pressure | See range table below |
| Media Compatibility | Air and non corrosive gases and liquids |
| Housing | Designed to meet NEMA-4X |
| Power Supply | 12.3 to 35 VDC |
| Output Signal | 4-20 mA DC, 2 wire (limited at 39 mA maximum) |
| Loop Resistance | 0-1135 ohms from 12.3 to 35 VDC |
| Current Consumption | 38 mA DC maximum |
| Span and Zero Adjustments | Protected potentiometers, located in auxiliary housing |
| Pressure Connection | ¼" FNPT x ½" MNPT, 316L Stainless Steel |
| Zero Output | 4 mA DC |
| Full Span Output | 20 mA DC |
| Accuracy | ±0.5% of full span output (at 70°F/21°C) |
| Operating Temperature | 20 to 120°F (-6.7 to 48.9°C) |
| Thermal Errors | ±1%/50°F (27.8°C), typical |
| Weight | 1 lb.,12oz. (0.8 kg) |
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Phone: 604-254-9622
Fax: 604-254-3123
e-mail: info@johnsherman.com