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## PS61 – OEM Subminiature Pressure Switch 

- 10 to 4,350 psi (0.7 to 300 bar) 

- Exceptional Size-to-Pressure-Range Ratio 

- Perfect for Demanding Applications 

Available with enhanced ingress protection and integral electrical connections. These subminiature pressure switches are suitable for a wide range of hydraulic and pneumatic applications including medical, general industrial, fire suppression, and off highway vehicle. 

## Specifications 

|Specifications||
|---|---|
|**Switch***|100 VA Max.|
|**Repeatability**<br>~~—~~|See Table 2<br>~~—~~|
|**Deadband**|See Table 2|
|**Wetted Parts (Pressure Range Codes 10-60)**|**Wetted Parts (Pressure Range Codes 10-60)**|
|**Diaphragm**|Low-Temp Nitrile (optional FKM, FVMQ [Fluorosilicone]|
||or EPDM)|
|**Fitting**|Zinc-Plated Steel(316 L Stainless Steel available)|
|**Wetted Parts (Pressure Range Codes 70-100)**|**Wetted Parts (Pressure Range Codes 70-100)**|
|**Seal**|InternallyLubricated Nitrile(optional FKM or EPDM)|
|**Piston**|Hardened alloysteel|
|**Bearing**|Proprietary plastic resistant to almost all chemicals|
|**Fitting**|Zinc-Plated Steel|
|**Temperatures**||
|**Fluid**|See Table 1|
|**Ambient**|-40°F to +250°F(-40°C to +121°C)|
|**Storage **<br>**Vibration**|-65°F to +275°F(-54°C to +135°C)|
|**Sinusoidal**|MIL-STD-202G,Method 204D,173m2/sec,91-2000Hz,8 hours/axis|
|**Random**<br>**Shock, Operating**<br>**Salt Spray**<br>**Thermal Shock**<br>**Life Cycle****|MIL-STD-202G,Method 214A,146m2/sec,5-2000 Hz,8 hours/axis<br>MIL-STD-202G,Method 213B,500m2/sec,18X<br>ASTM B117,95°F(35°C)for 96 hours<br>-40°F to +250°F (-40°C to +121°C), 1 hour dwells,<br>1 minute change, 15 cycles<br>2 MM cycles with checks every 250k for all 10 pressure ranges.<br>Range 10-40: 0 - 500 - 0 PSI @ ~1Hz|
|**Approvals**|Range 40-60: 0 - 3000 - 0 PSI @ ~1Hz<br>Range 70-100: 0 - 6000 - 0 PSI @ ~1Hz<br>CE,RoHS|



* Gold contacts (option G) may be required for less than 12 VDC and 20 mA. 

- ** Contact Factory for life cycle on FVMQ (Fluorosilicone) diaphragm option. 

## Electrical Connectors 

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Table 1 – Recommended Fluid Temperature Limits 

|**Seal Material**|**Range**|
|---|---|
|Nitrile (Pressure<br>Range Codes 10-60)|-22°F to +250°F (-30°C to +121°C)|
|FVMQ (Pressure<br>Range Codes 10-40)|-40°F to +250°F (-40°C to +121°C)|
|Nitrile (Pressure<br>Range Codes 70-100)|15°F to 250°F (-9°C to +121°C)|
|FKM (All Ranges)|0°F to 250°F (-18°C to +121°C)|
|EPDM (All Ranges)|-10°F to +250°F (-23°C to +121°C)|



Notes: 

1. Switches may function below the cold temperature limit but the set points and deadband will increase. Consult factory for details. 

2. Temperature performance is dependent on set point and fluid viscosity (fluids must remain free flowing liquids for Ranges 70-100). 

3. Ranges 70-100 not recommended for use with gases. 

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= **I-17** 

_**Visit www.GemsSensors.com for most current information.**_ 

PS61 Series / p1of2 / 23-MAY-17 

**SUBMINIATURE** 

## How To Order 

Use the **Bold** characters from the chart below to construct a product code. Please reference Notes. 

## **PS61 -10 -4MNZ -A -SP -X-X-XX** 

**1 2** 

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## **1 Pressure Range Code** 

Insert Pressure Range Code from Table 2, below. 

**2 Pressure Fitting[1]** 12L14 Zinc-Plated Steel 

- **-2MNZ** = 1/8˝ NPT Male 

- **-4MNZ** = 1/4˝ NPT Male 

- **-2MGZ** = 1/8-28 BSPP; ISO 228-G 1/8 B (Pressure Range Codes 10-60 Only) 

- **-4MGZ** = 1/4-19 BSPP; ISO 228-G 1/4 B 

- **-4MSZ** = 7/16˝-20 SAE J1926-2 

- **-6MSZ** = 9/16˝-18 SAE J1926-2 

- **-M10Z** = M10 x 1.0 ISO 6149-2 **-M12Z** = M12 x 1.5 ISO 6149-2 **-M14Z** = M14 x 1.5 ISO 6149-2 

- 316 Stainless Steel (Range 10-60 Only[2] ) **-2MNS** = 1/8˝ NPT Male 

- **-4MNS** = 1/4˝ NPT Male 

- **-4MGS** = 1/4-19 BSPP; ISO 228-G 1/4 B 

- **-4MSS** = 7/16˝-20 SAE J1926-2 **-6MSS** = 9/16˝-18 SAE J1926-2 

## **3 Circuit** 

- **-A** = SPST/N.O. **-B** = SPST/N.C. 

Notes: 

## **4 Electrical Termination** 

   1. Other fittings and materials available. Consult factory. 

- **-SP** = 2x 1/4˝ x 1/32˝ Spade, Factory Set or Adjustable[3] 

- **-TS** = 6-32 Terminal Screws, Factory Set or Adjustable[3] 

      2. Consult factory for use with Pressure Range 70-100. 

      3. Use a Security hex key, 5/32˝ or 4mm, to adjust set point. (Tamper-resistant hex bit available as Gems P/N 249230) 

   - **-SS** = Amp Superseal 1.5 Integral Male, Factory Set 

   - **-DT** = Deutsch DT04-2P Integral Male, Factory Set 

- **-FLAXX** = 18 AWG Flying Leads[4] , Adjustable[3] 

   4. 18˝ is standard. Specify lead length in inches (max. 48˝). 

- **-FLFXX** = 18 AWG Flying Leads[4] , Factory Set 

- **-FLSAXX** = 18 AWG Flying Leads w/PVC Shrink Tubing[4] , Adjustable[3] 

   - e.g. **-FLA18** or **-FLF30** . 

   5. 36˝ is minimum. Specify cable length in inches. e.g. 

- **-FLSFXX** = 18 AWG Flying Leads w/PVC Shrink Tubing[4] , Factory Set 

   - **-CAB36** or **-CAB120** . 

   6. Consult factory for life cycle information. 

- **-CABXX** = 18 AWG PVC Cable[5] , Factory Set 

## **5 Options** 

- **-V** = FKM 

- **-E** = EPDM 

- **-F** = FVMQ (Fluorosilicone; Pressure Range Codes 10-40 Only)[6] 

- **-G** = Gold Contacts 

- **-OF** = Oil Free Cleaned (Pressure Range Codes 10-60 Only; Stainless Steel Housing Required) 

- **-RB** = Rubber Boot (Shipped Loose) 

- **-WF** = Weather Pack Connector, Female P/N 12015792 

- **-WM** = Weather Pack Connector, Male P/N 12010973 

- **-DE** = Deutsch Connector, Male P/N DT04-2P-E003 **-FS** = Factory Set Specify Value & Rising/Falling 

Table 2 – Pressure Range Codes 

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Pressure<br>Recommended  Average<br>Range  Style Pressure Range Repeatability* Proof Pressure Burst Pressure<br>Media Deadband**<br>Code<br>**----- End of picture text -----**<br>


|**Pressure**<br>**Range**<br>**Code**|**Style**|**Recommended**<br>**Media**|**Pressure Range**|**Repeatability***|**Average**<br>**Deadband****|**Proof Pressure**|**Burst Pressure**|
|---|---|---|---|---|---|---|---|
|||||||||
|**10**|Diaphragm|Liquids & Gases|10-60 psig (.7-4.1 bar)|±1.5 psi (0.10 Bar) +3% of setting|12% of setting|6,000 psi (414 bar)|9,000 psi (620 bar)|
|**20**|||40-150 psig(2.8-10.3 bar)|±2.5 psi (0.17 Bar) +3% of setting|13% of setting|||
|**30**|||75-275 psig (5.2-19 bar)|±3.75 psi (0.26 Bar) +3% of setting|13% of setting|||
|**40**|||150-500 psig (10.3-34.5 bar)|±5 psi (0.34 Bar) +3% of setting|14% of setting|||
|**50**|||275-800 psig (19-55.1 bar)|±8 psi (0.55 Bar) +3% of setting|15% of setting|||
|**60**|||400-1,350 psig (27.6-93 bar)|±13 psi (0.90 Bar) +3% of setting|17% of setting|||
|**70**|Piston|Liquids|510-1,235 psig (35-85 bar)|±30 psi (2.1 Bar) +4% of setting|14% of setting|7,000 psi (483 bar)|22,000 psi (1517 bar)|
|**80**|||800-1,960 psig(55-135 bar)|±48 psi (3.3 Bar) +4% of setting|17% of setting|||
|**90**|||1,835-3,115 psig (125-215 bar)|±110 psi (7.6 Bar) +6% of setting|21% of setting|||
|**100**|||2,970-4,350 psig (205-300 bar)|±190 psi (13.1 Bar) +6% of setting|24% of setting|||



* Repeatability and set point of units will vary depending on temperature, fluid viscosity, cycle rate and ramp rate. Repeatability values are based on room temperature. Long term inactuation will lead to a higher initial set point reading due to the non-linear behavior of the elastomer diaphragms or seals. Fluids with low and stable viscosities over the expected temperature range will exhibit better performance. 

** Deadband values are an approximation at room temperature with nitrogen or compressed air (Ranges 10-40) or a 100 Cp fluid (Ranges 40-100). At lower temperatures and/or higher fluid viscosities the deadband will be much larger than the value shown. At high fluid temperature and a rapid cycle rate, the deadband may be lower than the approximations given. Please consult the factory if specific statistical analysis is required. 

**I-18** 

_**Visit www.GemsSensors.com for most current information.**_ 

PS61 Series / p2of2 / 23-MAY-17