Model 700 / 710 / 715
Diaphragm Type
WET/WET Differential Pressure Transmitter
Mid-West Instrument wet/wet differential pressure transmitter utilizes a piezoresistive differential pressure sensor sensing element with stainless steel isolated diaphragm. Silicon oil is filled in between die and two diaphragms. The measured differential pressure is transmitted onto the die through the diaphragm and silicon oil. The signal output generated by the piezoresistive bridge sensor is amplified into a useable voltage or 4-20 mA output as specified by customer. Series 700 is manufactured in China. It is recommended to install a 3 valve manifold between point of measurement and the transmitter. 1 Year Limited Warranty. (Standard Delivery 4 Weeks ARO.)
Contact Us Today For Availability
Product Features/Benefits
- Utilizes Piezoresistive Differential Pressure Sensor Isolated Diaphragm
- Use with Liquid or Gas media compatible with material of construction
- Full stainless steel construction, compact size, easy installation
- Model 710 LCD Display or Model 715 LED Display available upon request
- (Available with DIN Connector & 4-20mA Output Only)
- Maximum Overpressure (+) Hi-Side equals 2 times specified DP range
- Maximum Overpressure (-) Low-Side is equal to specified DP range
- Maximum Static Pressure 2,900 PSI
- 1 Year Warranty
- For complete model details See Bulletin_700.pdf
Specifications / Configuration
- Laser welded, fully-sealed construction: NEMA 4X (IP65)
- Differential Full Scale Ascending Accuracy 5 PSID to 300 PSID ±0.50% (ASME B40.1 Grade 2A)
- Available in a Variety of Dial Scales: PSID, BAR and KPA.
- Static Working Pressures: 2900 PSIG
- Operating Temp -10°F to +80°F
- Material of Construction: – 321 Stainless Steel(Wetted Part)
- Diaphragm & Internal wetted parts-316L Stainless Steel
- Fill Liquid: Silicone
- Instrument process connections: ¼” BSPP (STD)
- Optional Process connection adapters: ¼” Male BSPP X ¼” Female NPT and ¼” Male BSPP X ½” Female NPT
- Elastomers O-ring Material: Viton
- For complete specifications see: Specificationsheet_700.pdf
Common Applications
- Filters
- Local Flow Indication
- Factory Pneumatic Air
- Heat Exchangers
- Strainers, Pumps
- Pitot Tubes
- Level Applications
Electrical Specifications:
See Bulletin IOM_700
Mid-West Instrument Model 700 signal output generated by the piezoresistive bridge sensor is amplified into a useable voltage or 4-20 mA output as specified by customer. Zero and Span Adjustable, LCD or LED display available upon request. Din Connector available with 4-20mA output only. NEMA 4X (IP65) Zero and Span Adjustable.
- Power Supply: 2-Wire 15~28 VDC, LCD = 2-Wire 18~28 VDC, LED = 2-Wire 20-28 VDC, 3-Wire 15~28 VDC
- Output Signals: 2-Wire = 4~20 ma DC, 3-Wire = 0-5 VDC, 1-5 VDC, 0-5 VDC, 0-10 VDC, 0-10 ma DC and 0-20 ma DC
- Electrical Connections: Din Plug 43650 or 1.5m 4-pin cable, Response Time: (10%~90%) ≤1ms, Insulation Resistance 100MΩ, 50VDC
Additional Options:
- Stainless Steel Adapters: ¼” Male BSPP X ¼” Female NPT and ¼” Male BSPP X ½” Female NPT
The Mid-West Advantage
- 1 year warranty
- 30 + Years Hazardous Location product manufacturer.
- OEM and Private Label Capabilities
- Fast on-time Deliveries
- Friendly Customer Support
- Certified Quality System CSA B51-09 SAI GLOBAL
“Diaphragm Type” Gauges with Electrical Optional
| Model No. | Differential Pressure Range | Accuracy | Working Pressure | Electrical Available | Specifications | Installation/ Operation Manual | Electrical IOM | Drawing |
|---|---|---|---|---|---|---|---|---|
| Model 114 | 0-0.72 PSID (0-20" H20) to 0-20 PSID (0-600" H2O) Tank Level Applications |
±2% | 1000 PSI | CE / LVD, RoHS Compliant, NEMA 4X, 4-20mA Transmitter | ||||
| Model 130 | 0-5" H2O to 0-15 PSID (0-400" H2O) | 0-5" H2O to 0-9.9" H2O ±5% 0-10" H2O to 0-15 PSID ±3/2/3% |
Up to 500 PSI | CE / LVD, RoHS Compliant, NEMA 4X, Class 1-Div. 1 | ||||
| Model 140 | 0-50" H2O to 0-100 PSID | 0-50" H2O to 0-399" H2O ±5% 0-15 PSID to 0-100 PSID ±3/2/3% |
Up to 3,000 PSI | CE / LVD, RoHS Compliant, NEMA 4X, Terminal Strip, Class 1-Div. 1, Class 1-Div. 2, 4-20mA Transmitter | ||||
| Model 142 | 0-20" H2O to 0-25 PSID | ±3/2/3% | Up to 3,000 PSI | CE / LVD, RoHS Compliant, NEMA 4X, Terminal Strip, Class 1-Div. 2, 4-20mA Transmitter | ||||
| Model 522 | 0-5 PSID to 0-50 PSID | ±5% | 1,000 PSI | CE / LVD, RoHS Compliant | N/A |
Electrical “Diaphragm Type” Gauges
| Model No. | Differential Pressure Range | Accuracy | Working Pressure | Electrical Available | Specifications | Installation/ Operation Manual | Electrical IOM | Drawing |
|---|---|---|---|---|---|---|---|---|
| Model 240 | 0-20" H2O to 0-100 PSID | ±3/2/3% | Up to 1500 PSI | CE / ATEX / RoHS Compliant CSA, UL & KOSHA CERTIFIED, NEMA 4X, Terminal Strip, Class 1-Div. 1, Class 1-Div. 2, 4-20mA Transmitter | N/A | |||
| Model 700 / 710 / 715 | 0-5 PSID to 0-300 PSID | ±0.50% | 2,900 PSI | 2-Wire 4-20 mA Transmitter 15-28 VDC, LCD = 4-20 mA Transmitter 18-28 VDC, LED = 4-20 mA Transmitter 20-28 VDC 3 Wire 15-28 VDC/1-5 VDC, 15-28 VDC/0-5 VDC, 15-28 VDC/0-10 mADC, 15-28 VDC/0-20 mADC, 15-28 VDC/0-10 VDC |
N/A |
“Indicator” Style Diaphragm Type Gauges
| Model No. | Differential Pressure Range | Accuracy | Working Pressure | Electrical Available | Specifications | Installation/ Operation Manual | Electrical IOM | Drawing |
|---|---|---|---|---|---|---|---|---|
| Model 522C3-Color Dial | 0-5 PSID to 0-50 PSID | ±5% | 1,000 PSI | CE / LVD, RoHS Compliant | N/A | N/A | ||
| Model 555A3-Color Dial | 0-3.5 PSID to 0-43 PSID | ±5% | 300 PSI | Not Available | N/A | N/A | N/A |
