| pH/mV input (analog) |
pH socket, DIN 19 262 (13/4 mm)
pH range -2 … 16
Decimal places*) 2 or 3
Input resistance 1 x 1012 Ω (0 … 35 °C)
Input current 1 x 10-12 A (at RT, doubles every 10 K)
Measuring cycle Approx. 1 s
Measurement error1,2,3) < 0.01 pH, TC < 0.001 pH/K
mV range -1300 … +1300 mV
Measuring cycle Approx. 1 s
Measurement error1,2,3) < 0.1 % meas. val. + 0.3 mV, TC < 0.03 mV/K |
| Temperature input |
2 x 4 mm dia. for integrated or separate temperature detector
Measuring ranges NTC 30 kΩ -20 … +120 °C Pt 1000 -40 … +250 °C
Measuring cycle Approx. 1 s
Measurement error1,2,3) < 0.2 K (Tamb = 23 °C); TC < 25 ppm/K |
| Memosens pH input (also ISFET) |
M8 socket, 4 pins, for Memosens lab cable
Display ranges4) pH -2.000 … +16.000 mV -2000 … +2000 mV
Temperature -50 … +250 °C |
| Memosens ORP input |
M8 socket, 4 pins, for Memosens lab cable
Display ranges4) mV -2000 … +2000 mV
Temperature -50 … +250 °C
Sensor standardization*) ORP calibration (zero adjustment)
Permissible calibration range ΔmV (offset) -700 … +700 mV |
| Sensor standardization*) |
pH calibration |
| Operating modes*) |
Calimatic Calibration with automatic buffer recognition
Manual Manual calibration with entry of individual buffer values
Data entry Data entry of zero and slope |
| Permissible calibration range |
Zero point 6 ... 8 pH With
ISFET: -750 … +750 mV Operating point (asymmetry)
Slope Approx. 74 … 104 % |
| Calibration timer* |
Interval 1 … 99 days, can be switched off |
| Sensoface |
Provides information on the sensor condition Evaluation of zero/slope, response, calibration interval |
| Connections |
2x socket, 4 mm dia., for separate temp. detector 1x M8 socket, 4 pins, for Memosens lab cable 1x pH socket, to DIN 19262 |
| Diagnostics functions |
Sensor data (only Memosens) Manufacturer, sensor type, serial number, operating time
Calibration data Calibration date, zero and slope
Device self-test Automatic memory test (FLASH, EEPROM, RAM)
Device data Device type, software version, hardware version |
| Data retention |
Parameters, calibration data > 10 years |
| EMC |
EN 61326-1 (General Requirements)
Emitted interference Class B (residential area)
Immunity to interference Industry
EN 61326-2-3 (Particular Requirements for Transmitters) |
| RoHS conformity |
According to directive 2011/65/EU |
| Power supply |
4x AA batteries
Operating time Approx. 1000 h (alkaline) |
| Nominal operating conditions |
Ambient temperature -10 … +55 °C
Transport/Storage temp. -25 … +70 °C
Relative humidity 0 … 95 %, short-term condensing allowed |
| Housing |
Material PA12 GF30 + TPE
Ingress protection IP66/67 with pressure compensation
Dimensions Approx. (132 x 156 x 30) mm
Weight Approx. 500 g |