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© 2011 Ashcroft Inc. 250 East Main Street, Stratford, CT 06614 USA
Tel: 203-378-8281, Fax: 203-385-0402 www.ashcroft.com
All sales subject to standard terms and conditions of sale.
I&M011-10169 Rev. A 5/11
Installation and Maintenance
Instructions for GC30
Ultra-Compact Digital
Differential Pressure Transducer
LOOK FOR THIS
AGENCY MARK ON
OUR PRODUCTS
1
Version 5.0 5/11
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Summary of Contents for Ashcroft GC30
- Page 1 Installation and Maintenance Instructions for GC30 Ultra-Compact Digital Differential Pressure Transducer © 2011 Ashcroft Inc. 250 East Main Street, Stratford, CT 06614 USA Tel: 203-378-8281, Fax: 203-385-0402 www.ashcroft.com LOOK FOR THIS All sales subject to standard terms and conditions of sale.
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Page 3: Table Of Contents
CONTENTS CAUTION ........................1. SPeCIfICATIONS ......................2. DIMeNSION DrAwINGS....................3. INSTAllATION ......................4. wIrING ..........................5. NOISe PreVeNTION ....................6. STOrAGe........................7. MAINTeNANCe ......................8. MeNU NAVIGATION ...................... 9-10 9. fUNCTION SeTTING MODe..................10-12 10. SwITCh SeTTING MODe ....................12-13 11. -
Page 5: Caution
A failure resulting in injury or damage may be caused by excessive overpressure, exces- sive vibration or pressure pulsation, excessive instrument temperature, corrosion of the pressure containing parts, or other misuse. Consult Ashcroft Inc., Stratford, Connecticut, USA before installing if there are any questions or concerns. -
Page 6: Specifications
1. SPECIFICATIONS PerfOrMANCe SPeCIfICATIONS Analog Output (1–5Vdc): Accuracy ± 1.5% FS (Accuracy includes the effects of Linearity, Hysteresis and Repeatability) Response Time: 50msec Output Resolution: 25mV Analog Scaling: User may configure analog output scaling to any range within Full Scale of sensor range. -
Page 7: Dimension Drawings
2. PrODUCT DIMeNSIONS: 3. INSTAllATION Install in a location where vibration and shock can be minimized and without direct sunlight on the display in compliance with IP40 environmental rating. Note: Panel mount adapter for back connection only. Do not attach panel mount adapters prior to panel installation or out of sequence as stated below. -
Page 8: Wiring
Brown: Power (+) Blue: Power (–) Black: Open collector output (OUT1) White: Open collector output (OUT2) Orange: 1-5Vdc output (+) Analog Output (1-5VDC) GC30 (Brown) Power (+) (Black-White) (Orange) 1-5Vdc Load min. (Blue) Power (–) NPN Type Switch function (wiring to relay) - Page 9 PNP Type Switch function (wiring to relay) (Brown) GC30 Power (+) Protective transistor diode (ensure to install) Relay (Black-White) 80mA max. Relay Output (Blue) Power (–) Note: Ensure that the relay’s operation coil rated current and voltage are within the transistor’s rating.
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Page 10: Noise Prevention
The pressure display can fluctuate and provide incorrect output if noise is present in the power supply/wires. Care should be taken to keep the GC30 power supply wires from high voltage lines and use a power line with a high noise rejection ratio. -
Page 11: Function Setting Mode
Pressing the MODE key for 3 seconds displays “---”. To return to measurement mode from each setting mode, the “---” display will flash when 3 seconds have passed. Comparator setting mode loop check mode • Hysteresis operation setting function setting mode Setting point, deadband setting •... - Page 12 Measurement Mode MODE MODE Press > 3 sec. Press > 3 sec. Select with Function Setting Mode After 1 second keys Hys or (Comparator operation selection) Message displayed Current setting Hysteresis Window comparator Select with MODE After 1 second keys MPa or (Display selection) Message displayed...
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Page 13: Switch Setting Mode
Max. pressure range value: 9e. fIlTer SeCTION The GC30 is equipped with 5 internal time constant filters. Use this function when pressure fluctuations can result in erratic, difficult to read displays. The time constant for the selected fil ters reflects on the switch outputs as well as the analog output. - Page 14 NOTE: if the switch’s setting value is set outside the display range, the switch’s setting value can be rewritten automatically by the function setting mode operation. Measurement Mode MODE MODE Press < 3 sec. Press > 3 sec. Comparator Setting Mode Loop Check Mode After 1 second Set any desired value within...
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Page 15: Switch Operation
11. SwITCh OPerATION – hYSTereSIS/DeADbAND Setting the upper limit. This is the mode in which the switch operates with the setting value (A) as the upper limit. The upper limit setting is determined when you select a positive number (including 0) for setting value (b). -
Page 16: Other Functions
window Comparator Operations loop check function At the end of the Switch Operation Menu is the Loop Check function. Using the MODE key to select the Loop Check function. After lop is displayed for 1 second, the value of the lat- est measurement mode is displayed as default. -
Page 17: Error Display
Maximum/Minimum Pressure Capture The GC30 unit keeps the maximum and minimum pressure level applied to the pressure port as peak and bottom values respectively, in the internal memory. The peak and bottom values keys respectively. Message pe+ is displayed for one are displayed while holding the second and selected Max/Min value is displayed by this operation. - Page 18 14. MAINTeNANCe AND wArrANTY Periodic Inspection Depending upon the type of use periodic inspection is recommended at least once a year. Please refer to the following items for periodic inspection. 1. Appearance 2. Display/output check via appropriate pressure standard 3. Display/output check via loop Check CAUTION •...
- Page 20 © 2011 Ashcroft Inc. 250 East Main Street, Stratford, CT 06614 USA Tel: 203-378-8281, Fax: 203-385-0402 www.ashcroft.com All sales subject to standard terms and conditions of sale. I&M011-10169 Rev. A 5/11...
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