0-5 Vdc, Hazardous Location Approvals, 0-1.5 thru 5K PSI
748 has hazardous location approvals, optional zero and span adjustment and can measure pressures as low as 1.5 psi. Compound ranging, negative outputs, a variety of pressure and electrical connections are examples of options that are available to customize the 748 to your exact requirements
Features
High Accuracy
Many Options available
All Stainless Steel construction
Low Pressure Applications
Full Scale Pressure Range:
- 0-3 thru 0-5000 PSIG, PSIS
- 0-15 thru 0-5000 PSIA
- .0-15 PSIV*
Linearity (Best Fit Straight Line):
- ≤ ±0.25%
- “DN” Option- Improved Linearity≤ ±0.1%
Hysteresis: ± 0.05% FSO
Repeatability: ± 0.05% FSO
Full Scale Output (FSO): 16 mA ±1%
Zero Balance: ≤ ±1% FSO
Long Term Stability: ≤±0.25% FSO per 6 months
Response Time: ≤ 1 mSec to reach 90% FSO
Temperature Effect on Zero: ≤±1% FSO per 100°F (37°C)
Temperature Effect on Span: ≤±1% FSO per 100°F (37°C)
Compensated Temperature: 32°F to 180°F (0°C to 82°C)
Operating Temperature: -40°F to 185°F (-40°C to 85°C)
Storage Temperature Limit: -40°F to 250°F (-40°C to 121°C)
* For PSIV and Compound Range units:
- Temperature Effect on Zero (≤±3.0% per 100°F)
- Compensated Temperature Range (32°F to 170°F (0°C to 77°C))
Supply Voltage: 9.0 to 30 Vdc
Power Supply Regulation Effect: ≤±0.05% FSO per Volt
Output Signal: 4 – 20 mA
Load Resistance: 12 Vdc min with 150 ohm and 30 Vdc max with 1050 ohms
Circuit Protection: Output may be short-circuited indefinitely. Input polarity may be reversed. Over voltage protected to 1000 volts. <1 msec duration.
Insulation Resistance: <5nS Conductance
Electrical Connection: 1/2″ NPT (M), 18 AWG wire, 72″ long
Wire Color Codes:
Red +Power/Signal
Black -Power/Signal
Green Case ground
White No Connection
Brown No Connection
Pressure Connection: 1/4″ – 18 NPT Female (1/4″ – 18 NPT Female (0-3.3 thru 0-1034 bar))
Proof Pressure:
- <=500 PSI lesser of 3x or 1200 PSI
- >=500 PSI lesser of 5x or 10K PSI
Burst Pressure:
- <=500 PSI lesser of 5x or 2400 PSI
- >=500 PSI lesser of 5x or 10K PSI
Enclosure Housing: 304 and 316 stainless steel
Wetted Parts: 316 Stainless Steel
Weight: 10 oz.
Identification: Laser etched onto body
Mounting: May be supported by pressure connection
DF: Bleed port (10K PSI and below)
DH: Special range
DN: Improved Linearity ≤0.1% FSO
DQ: Cleaning for oxygen service
EA: Special calibration run
NG: ATEX Flameproof label
NH: Customer specified identification
NJ: CE label
NK: ATEX intrinsic safety label
NX: CSA intrinsic safety label
NY: FM explosion proof label
NZ: FM nonincendive label
PW: 1/8 DIN digital indicator (consult factory)
TF: FM intrinsic safety label
TJ: CSA Division 2 label
TK: ATEX Type n label
TW: Russia Certificate of Conformity
Y ( ): Alternate pressure ports
Note:
Application of some available options may affect standard performance.
NJ and NG Options are not available on PSIV or Compound Range Units
For units equipped with a breather vent, consideration should be given to ensure that the breather element is kept clear and exposure to contamination is minimized
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