Keterangan :

Description
pH & D.O. analyzer, 1/ 4 DIN panel mount IP-65 case, polarographic sensor with replaceable membranes and programmable pressure and salinity compensation. Features 2 pH and 2 D.O. fully programmable relays and one for temperature. RS-485 interface, password protected with individual ID' s. 4-20 mA analog output is fully programmable, assignable & reversible. Graphical display. Tinned lead connectors. CE Approved.

* High 50/ 60 hz noise rejection
* Power down memory backup
* Auto tempe. compensation
* Bumpless calibration
* RS-485 output
* Membrane switch with audio feedback
* Displays pH electrode efficiency
* Four user programmable relays for pH
* Simultaneous analysis and display for measurement and control
* pH/ temperature measurement & control
* Reversible and isolated 4 to 20ma output
* One programmable relay output for temperature
* Graphic LCD display, 128 x 64 with backlight
* Pipe, wall or panel mounting watertight 1/ 4 DIN enclosure
* Selectable linear or anti-logarithmic pH output

Specifications
pH
Range : -2.00 to 16.00 Resolution : 0.01pH
Accuracy : 0.1% ± 1 LSD
Dissolved Oxygen ( ppm) Range : 0.0 to 60.00 ppm Resolution : 0.01 ppm
Accuracy : ± 0.2% of span
Dissolved Oxygen ( % )
Range : 0 to 500.0% Resolution : 0.1 %
Accuracy : ± 0.2% of span
Temp.
Range : -10.0 to 120° C Resolution : 0.1° C
Accuracy : ± 0.1° C

#
pH

* pH temperature compensation range: -10.0 to 120.0° C
* pH buffer recognition: 4.01, 7, 10.01 / 4.00, 6.86, 9.18
* pH buffer temperature range: 0 to 60.0 ° C
* pH electrode slope compensation: ± 30% of ideal slope
* pH electrode offset compensation: ± 100 mV
* Input impedance: Greater than 10 exp( 13) ohms
* Calibration auto end point sensing: Yes

DO

* Salinity compensation: 0.0 to 40.0 ppt
* Pressure compensation: 600 to 1100mbar

Output Relays

* Relays numbers: One programmable relay for temperature
two high
* Control type: On/ off
* Relay output ( resistive load only ) : 5a at 115v or 2.5a at 230v
* Set point hysteresis: User programable

Current Output

* Current output: Isolated & reversible 4 to 20 mA
* Range: Selectable zero & span
* Accuracy: ± 0.02 mA
* Insulated voltage: 500VAC
* Max load: 500 ohm

General

* ATC sensor: Thermistor, 10 k ohm at 25 ° C
* Security protection: 4digit password
* Dimension: 1/ 4 DIN, depth 148 mm
* Weight: 950 gm
* Power source: 115/ 230 VAC, 50/ 60hz
* Pre-amplifier voltage: ± 5 VDC, 20mA max output
* Communication: RS-485
* Keypad: Audio feedbackup