Ashcroft GC55, Installation And Maintenance Instructions Manual

Page: 6 / 24

6
1. specifications
Pressure Range: 75, 100, 150, 250, 300 psid
(as noted on the unit)
Proof Pressure: 2X F.S.
Differential Pressure range (
∆ P): ∆ P=P1(H)-P2(L); as marked on unit
Display Range: Diff. pressure range of –5 to 105%F.S. or display of
–1999 to 1999
Power supply:
• 4-20ma Output Version: 15-27 Vdc, 80mA
• 1-5 Vdc Output Version: 11-27 Vdc, 60mA
Display: 3 1
⁄
2
digit LED (digit height: 10mm)
Display accuracy
∆ P : ±(1.0%F.S.+1 digit)
P1, P2 : ±(0.5%F.S.+1 digit)
Update Time: 0.2 s
Media / Wetted Materials: Fluids and gases compatible with 304SS
(sensor housing) and 17-4ph SS (sensor diaphragm)
output:
Analog output (4-20mA or 1-5Vdc)*:
Accuracy: ± 0.5% FS (Accuracy includes the effects of Linearity,
Hysteresis and Repeatability)
Temperature characteristics
∆ P : Zero ±0.1%F.S./°C
: Span ±0.1%F.S./°C
P1, P2 : Zero ±0.05%F.S./°C
: Span ±0.05%F.S./°C
Response Time: 20msec – 10.0 sec (by user)
Output Resolution: 0.2% FS
Pressure switch output:
Type: (2) photo MOS relays, rated to 40Vdc/200mA
Setting Accuacy: ± 1.0% FS
Number of Contacts: 2
Hysteresis/Deadband: Variable (by user)
Window Comparator: 1%F.S. fixed
Delay: 0-2.00s (both ON, OFF)
Load resistance: 10k
Ω min-500 Ω max.
operating Temperature: –10 to 50°C (14 to 122°F)