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
- input: 0/4…20mA, 0…10V, Pt-100, special conversions
- 2 alarm contacts
- 4-digit LED display, 10mm
- programmable
- push buttons for device settings
- optionally current output 0/4…20mA, galvanic isolated
- power supply 20 to 253VAC/DC, galvanic isolated
- rail mounting
Product Details
The alarm unit M2118 is used to check or control any type of signal current or voltage signal. It converts the input signal to an internal standard signal of for example 0 to 100.0%. In this range two alarm contacts can be set independently. A 4-digit LED display shows the actual value and setpoints or alarm values in the range of -1999 to 9999 units.
All settings as alarm values, hysteresis, range and operating mode of the floating contacts can be set with a link cable, connected to a personal computer or a laptop.
Both alarm contacts can also be programmed with tiny push button switches.A typical application would be to measure and monitor pressure in a process vessel. The pressure transmitter converts the pressure of 1 to 10 bar to a current signal of 4 to. 20mA. The M2118 monitors under- and overpressure in the vessel. It converts the 4… 20mA signal current to 0…100.0%. The alarm is set between 0% (=1 bar) and 100.0% (=10 bar). With these floating alarm contacts, overpressure valves, compressors, etc. are driven directly.
Optionally, a galvanic isolated output signal of 0…20mA or 4…20mA is available.
Power supply: Universal supply 20 to 253VAC/DC
Specifications
| Input signal: | 0/4…20mA/0…1V and 10V, programmable |
| Input load / impedance: | current signal=51 , voltage signal=1MΩ |
| 2-Wire transmitter supply | 24VDC max. 25mA |
| Display: | 4-digit, LED red, 10mm |
| Display range: | -1999…9999 |
| Accuracy | ±0.1% at 23°C ambient temperature |
| Reproducibility | ±0.1% |
| Temperature coefficient | Zero drift: 30ppM/°C typical
Gain drift: 25ppM/°C typical |
| Long-term stability | ±0.1% |
| Working temperature range: | -5 to +45°C |
| Maximum humidity: | 95%, non-condensing |
| Range adjustment: | by computer programmable, see manual |
| Zero-/Gain adjustment: | by computer programmable, see manual |
| Alarm contacts
Hysteresis: Contacts: Max. contact load Change alarm contacts: Display alarm contacts: Mode of the alarm contacts: |
Two, adjustable between 0,0 and 100,0%
by computer programmable, factory set: ±5 digit, see manual foating change over contacts 1A/230V resistive by button switches or computer programmable, see manual by button switches or computer programmable, see manual with two red LED-Lamps |
| Display unit: | with one red LED-Lamps |
| Option current output:
Max. load: Output impedance: |
0/4…20mA, galvanically isolated
500Ω >1MΩ typical |
| 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: | – USB programming unit for MOSTEC devices with cable and software
– Other input signal |
