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The new Ashcroft® Model GC52 is uniquely compact wet/wet differential pressure transmitter, ideal for flow and tank level applications where reliable, low dP measurements are required. Equipped with the patented SiGlas™ 316 Stainless Steel isolated sensor, the GC52 can monitor a wide variety of wet or dry media. Available in unidirectional ranges from 0-4 to 0-400 in.W.C and bidirectional ranges up to ±200 in.W.C., the GC52 operates on line (static) pressures up to 300 psi. A rugged aluminum NEMA 4X / IP65 enclosure measures only 2.56 inches in diameter and incorporates a backlit LCD display for local reading. The output is a two-wire configurable 4-20 mA signal that can be adjusted to re-range the transmitter or "tare" unwanted fluid head preloads. In addition, this instrument offers flow measurement/square root extraction, where the momentary flow rate can be displayed and analog signal can be output.
PERFORMANCE SPECIFICATIONS
Reference Condition: 23°C ±2° (73°F)
Accuracy: ±0.50% FS (URL)
(Accuracy includes the effects of linearity,
hysteresis, and repeatability)
Stability: ±0.25% FS/year
Response Time: 100msec
Output Resolution: 0.1% FS (URL)
Display:
Type: 4 digit, 10mm LCD with LED backlight
Accuracy: ± 0.5% FS (URL) + last digit
Standard Ranges (Bi-Directional, Inches W.C.):
±4, ±8, ±20, ±40, ±80, ±200
Standard Ranges (Uni-Directional, Inches W.C.):
0-4, 8, 20, 40, 80, 200, 400
ENVIRONMENTAL SPECIFICATIONS
Temperature Limits:
Storage: –15 to 65°C (5 to 150°F)
Operating: –10 to 60°C (14 to 140°F)
Compensated: –10 to 60°C (14 to 140°F)
Temperature Effects (–10 to 60°C):
±0.03% FS/C° (from reference, 23°C (73°F)
FUNCTIONAL SPECIFICATIONS
Static (Line) Pressure:
Pressure Range Proof Burst
All 300 psi 800 psi
Static (Line) Pressure Effects:
Pressure Range Effect
≥ 20W.C., ±8 W.C. ±0.3% FS/100psi
8W.C., ±4 W.C. ±0.7% FS/100psi
4W.C. ±1.5% FS/100psi
Single Side (Differential) Limits:
Pressure Range Proof Burst
≤ 8 W.C., ±4 W.C. 30 psid 130 psid
≥ 20 W.C., ±8 W.C. 100 psid 130 psid
Vibration: 5g’s 150Hz
Shock: 10g’s 16ms
ELECTRICAL SPECIFICATIONS
Output Signal: 4-20mA (2 Wire)
Supply Voltage: 12-32Vdc
Rangeablility / Adjustment*:
Zero –10% to +110% FS
Span –10% to +110% FS
*Note: Accuracy and output resolution based upon full scale (URL) value.
Insulation Resistance: 50Vdc (>100Mohms)
CE Compliance: EN 613261 1997, A1/1998, A2/2001
(Heavy Industrial)
MECHANICAL SPECIFICATIONS
Pressure Connection:
– 1⁄4 Female NPT (Std.)
– 54mm conversoin joint for 3-way manifold (Opt.)
Enclosure: Aluminum, epoxy coated
Rating: IP65 / NEMA 4X
Electrical Connection:
External Options:
– 1⁄2 Female NPT Conduit
– Cable Gland (Cable Diameters 0.35 to 0.47)
Weight: Approx. 1.0 lb
Mounting: Mounting Bracket (see installation
drawings on back)
Media: Fluids and gases compatible with 316SS,
Viton and Alumina Ceramic
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