Prices excluded VAT and delivery costs
Delivery time approx. 2 to 4 weeks
- Order number: pH502421-2
pH500 series of controllers are simple to operate, microprocessor-based process meters packed with features.
Fail Safe Alarm System
Hanna’s exclusive Fail Safe Alarm System protects against problems caused by power supply failure or signal interruption, which are typical risks in industrial environments. An alarm condition is indicated by a red LED, located directly on the front panel of the controller.
To enhance troubleshooting and the ability to record data while monitoring, simply attach a recording device to the instrument’s 4 to 20 mA output contacts, conveniently located on the front panel, to obtain a hard copy of the results on demand.
In a system with poor grounding, it is possible to have a ground current flowing through the reference junction. This can cause a rapid degradation of the electrode. The Hanna differential input reduces the likelihood of ground loops.
RS232C port allows for connection to a PC. Data transmission from the instrument to the PC is possible with the HI 92500 Windows® compatible application software offered by Hanna Instruments.
Slows the pump down when the measured pH level approaches the set value, which ensures precise dosage and avoids costly waste of chemicals due to overdosage.
Automatic Temperature Compensation
A 2-wire Pt100 can be connected to provide automatic temperature compensation of measurements.
pH500111-2 pH Digital Panel Mount Controller, single setpoint, on/off control, analog output
pH500121-2 pH Digital Panel Mount Controller, single setpoint, proportional control, analog output
pH500211-2 pH Digital Panel Mount Controller, dual setpoint, on/off control, analog output
pH500221-2 pH Digital Panel Mount Controller, dual setpoint, proportional control, analog output
pH500222-2 pH Digital Panel Mount Controller, dual setpoint, proportional control, RS232 output
pH502421-2 pH Digital Panel Mount Controller, dual setpoint with SSR relay, on/off and PID controls, analog output
|pH Range||0.00 to 14.00 pH|
|pH Resolution||0.01 pH|
|pH Accuracy||±0.02 pH|
|pH Calibration||automatic, one, two or three point, at pH 4.01, 7.01, 10.01|
|pH Temperature Compensation||automatic (with Pt100 probe) or manual from -9.9 to 120°C|
|pH Input impedence||1012 Ohm|
|Temperature Range||-9.9 to 120°C|
Process Control Meter
|Analog Ouput Signal||galvanically isolated: 0-1 mA, 0-20 mA and 4-20 mA,0-5 VDC, 1-5 VDC and 0-10 VDC|
|Digital Output Signal||RS232 bi-directional optoisolated|
|Power Consumption||15 VA|
|Over Current Protection||5A, 250V fast fuse|
|Max. Oscillation Frequency||4 MHz|
|Panel Cutout||140 x 140 mm|
|Alarm Relay||1 contact output SPDT, 5A-250 VAC, 5A-30 VDC (resistive load), fuse protected (2A, 250V fast fuse)|
|Set Point||1 or 2 contact outputs SPDT 5A-250 VAC, 5A-30 VDC (resistive load), fuse protected (2A, 250V fast fuse)|
|Power Supply||115 VAC ±10%; 50/60 Hz|
|Environment||0 to 50°C (32 to 122°F); RH max 95% non-condensing|
|Dimensions||144 x 144 x 170 mm|
|Weight||1.6 kg (3.5 lb.)|
|Ordering Information||Each pH 500 model is supplied complete with mounting brackets and instructions.|