Product
Conductivity meter / controller type M2136
Minh Quan Technology Joint Stock Company
Hotline: 01692 114 683
Mr Que: 0973 852 363
Ms Ha: 0165 2197 433
Email: mqtekvietnam@gmail.com
Call usProduct information
- LED display
- temperature compensation to 120ºC
- measurement range: 0…20µS to 0…200mS
- programmable current or voltage output, switchable for conductivity or temperature
- power supply 20…254VAC or DC, galvanically isolated
- 2 limit contacts
- rail mounting
Product Details
The M2136 conductivity meter is suitable for water, waste water or pure water conditioning in continuous or batch-type operating modes, for liquid chromatography or for general chemical process monitoring.
Temperature coefficient of the cell is compensated either manually or automatically by an external Pt-100 platinum probe within the range of 0°C to 120°C.
Commercially available conductivity cells -K-factor 0.01, 0.1 and 1.0 cover a dynamic range from 0.01µS to 20mS full scale. An internal synchronous rectifier eliminates the capacitive error currents induced by the cell cable.Optionally, a galvanic isolated and in the range of 0…20mA programmable output signal for the conductivity signal or temperature is available. By a external 24V signal, the current output can be switched between conductivity- and temperature measuring.
Two floating limit or alarm contacts can be set over the entire range. Each is defined as a normally open or as a normally closed contact.
Supply lines and all other lines, either from or to the conductivity meter, are protected by internal noise limiters against HF-noise.
Specifications
| Measuring ranges: | 0…2.000mS (K=0.1, K=0.01)
0…20.00mS (K=1.0, K=0.1, K=0.01) 0…200.0mS (K=1.0, K=0.1, K=0.01) 0…2.000mS (K=1.0, K=0.1) 0…20.00mS (K=1.0) 0…200.0mS (K=10.0) |
| Range display | 2 red LED-Lamps |
| Display | Red LED-display 4-digit, character high 10mm |
| Accuracy: | 0.5% |
| Reproducibility: | <0.2% |
| Measuring frequency: | 80Hz and 10kHz |
| Measuring amplitude: | 70/150mV, conductive cell only |
| Step response | Time between a conductivity change from 0% to 100% or reverse measured between 10% and 90% = 4 seconds. |
| Input protection: | virtual zero, protected by diodes |
| Temperature compensation: | manual form 0 to 120ºC, automatic by an external Pt-100 platinum sensor, 2 or 3-wire. The unit calculates with 25ºC when the Pt-100 sensor wires are broken. |
| Temperature slope: | 0.00%/ºC (=without compensation) to 8.00%/ºC. |
| Conductivity of water | The conductivity of water is measured and temperature compensated |
| Reference temperature: | 25°C |
| Maximum length of cell cable: | Cable capacity is compensated automatically. The max. capacity must be <0.02µF. |
| Limit contacts:
Status: Hysteresis: Contacts rating: Contact live: |
Two floating change-over contacts may be adjusted over the full range. Each can be defined as a normally open or normally closed contact by an internal slide switch. two red LED-Lamps
adjustable, the factory setting is ±5 digit 1A with resistive load / 230VAC 100’000 operations at max. load 10’000’000 operation mechanically, without load |
| Option current output:
Max. load: Output impedance: |
programmable in the range of 0…20mA, galvanically isolated By a external 24V signal, the current output can be switched between conductivity- and temperature measuring. Conductivity measuring (terminal 14 & 15 open): Current output in depending of conductivity measuring Temperature measuring (termianl 14=0V, 15=24V): Current output in depending of temperature measuring
500W >1MW typical |
| Device settings:
change options: |
with bush buttons behind the front panel, see operating manual
measuring ranges, cells K-factor, temperature slope, temperature, limit contacts: operating mode, hysteresis, status of the LED-Lamps |
| Power supply: | 20 to 253VAC or DC |
| Power supply load: | 4.5 to 7.0W at 230VAC |
| CE-conformity: | fulfilled |
| Terminals | 3 x 6-pole plug-in screw terminals |
| Mounting: | 35mm mounting rail, EN50022-35 |
| Weight: | 200g |
| Warranty: | 2 years |
| Options: | – conductivity cell type M8836s and M8836si – customer specified functions |
