Valcom VW2 Series
- Multiple process inputs: 4~20mA, 0~5V, 1~5V and 0~10V
- Power supply of sensor is built-in.(DC24V Capacity: 50mA)
- Models with analog outputs are multiple output type: 0~10V, -10~10V, 1~5V and 4~20mA.
- Full high-intensity LEDs.
- CE-certified.
- Alarm setting 2 points(Three relay output or Photo-coupler Output)
- Pattern select function included (Up to eight patterns)
- Peak hold functions
“sample hold”, “Peak hold”, “Bottom hold” and “peak-to-peak” functions included. - Various functions
“Leading zero suppress”, “Forced-zero” and “Reelay reset” functions included.
Specification
| Input Method | Single-end |
|---|---|
| A/D Conversion Method | ΔΣ conversion method |
| Sampling Rate | MAX. 250 times / sec. |
| Display | Main display: Red/Green 7 segments LED display(Character height: Approx. 14.9mm) Sub display: White 7 segments LED display(Character height: Approx. 9mm) |
| Polarity Display | Displayed automatically for negative results. |
| Display Range | -19999~99999 |
| Zero Display | Leading zero suppress |
| Outer Control | 4 out of the following 5 functions are assigned to the external control terminals. * If the pattern select function is included, the remaining terminals available for other functions will be limited. 2 more functions (if 4 patterns used) or 1 more function (if 8 patterns used) ①Pattern select ②Hold ③Peak hold / Bottom hold / Peak to peak (Difference between the peak and the bottom) ④Forced-zero ⑤Relay reset |
| Range of Use Temperature | -5~50°C |
| Range of Use Humidity | 35~85%RH(No condensation) |
| Storage Temperature Range | -10~70°C |
| Storage Humidity Range | 60%RH or less |
| Power | AC100~240V±10% 50/60Hz |
| Power Consumption | AC100V: 12VA max. AC240V: 15VA max. |
| External Size | 96mm(W)×48mm(H)×99.7mm(D) |
| Mass | Approx. 250g |
| Dielectric Strength | Between Power terminal and Input terminal / External control terminals /Analog output AC2000V for 1 minute |
| Between Power terminal and Comparative output AC1500V for 1 minute | |
| Between Input terminal and External control terminals/ Analog output / Comparative output AC1500V for 1 minute | |
| Between Case and Terminal AC2000V for 1 minute | |
| Insulation Resistance | 100MΩ min. at 500V DC between above terminals |
| IP Rating | IP66(Front) |
| Case (Material / Color) | Polycarbonate / Black UL94V-0 |
| Overrange Display | OVER or –OVER for any input signal outside the display range. “OVER” or “-OVER” is displayed if input exceeds the measurement range by more than ±10%. |
| Decimal Point | Can be set at any desired place. |
Process signal input specifications
| Measuring Range | 1～5V, ±5V, ±10V, 4～20mA, ±20mA |
|---|---|
| Display | Offset: -19999~99999 Full scale: -19999~99999 Resolution: ±19999 |
| Input Impedance | Approx. 1MΩ: (1～5V, ±5V, ±10V) Approx. 10Ω: (4～20mA, ±20mA) |
| Maximum Safe Input | ±100V: (1～5V, ±5V, ±10V) ±50mA: (4～20mA, ±20mA) |
| Accuracy * | ±(0.1% of FS +1digit) (At the time of 23℃±5°C and 35~85%RH) |
* Accuracy applies when the sampling rate is 60 samples/s or less.
Comparison output specifications
| Control Method | Microcomputer-based | ||
|---|---|---|---|
| Trigger Value Range | -19999~99999 | ||
| Hysteresis | Can be set in the range of 1 to 9999 digits for each value. | ||
| Comparison Operation | Depends on the sampling rate. | ||
| Setting Condition | H. G. L. AL1 judgment value>AL2 judgment value(GO)>AL3 judgment value | ||
| Comparison Condition | Judgment | ||
| Displayed value>AL1 judgment value | AL1: ON | ||
| AL1 judgment value≧Displayed value≧AL3 judgment value | AL2: ON | ||
| AL3 judgment value>Displayed value | AL3: ON | ||
| G. L. L. AL1 judgment value(GO)>AL2 judgment value>AL3 judgment value |
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| Comparison Condition | Judgment | ||
| Displayed value≧AL2 judgment value | AL1: ON | ||
| AL2 judgment value>Displayed value≧AL3 judgment value | AL2: ON | ||
| AL3 judgment value>Displayed value | AL3: ON | ||
| H. H. G. AL1 judgment value>AL2 judgment value>AL3 judgment value(GO) |
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| Comparison Condition | Judgment | ||
| Displayed value>AL1 judgment value | AL1, AL2: ON | ||
| AL1 judgment value≧Displayed value>AL2 judgment value | AL2: ON | ||
| AL2 judgment value≧Displayed value | AL3: ON | ||
| Comparison Relay | Contact Rating | AC125V 0.3A (Resistive load) DC30V 1A (Resistive load) |
|
| Number of Contacts | Relay contact×3 (VW27N-2S□) | ||
| Minimum Applicable Load | 10µA 10mV DC | ||
| Mechanical Lifespan | More than 50 million times | ||
| Electrical Lifespan | More than hundred thousand times (Resistive load) | ||
| Photo-coupler Output Open Collector Output (NPN) |
Output Constant | Sink current: 50mA MAX. | |
| Applied voltage | 30V MAX. | ||
| utput saturation voltage | 50mA: 1.2V or less | ||
| Number of Outputs | Photo-coupler Output (NPN) ×3 (VW27N-2SO□) | ||
| Comparison Warning Function | Normal judgment output, zone judgment output, tolerance judgment output | ||
| Comparison Condition Memory | 8 patterns are memorized. | ||
Analog output specifications
| Load Resistance | 0~2V, 0~10V, -10~10V, 1~5V:10kΩ or more 0~20mA, 4~20mA:550Ω or less |
|---|---|
| Accuracy | ±(0.1% of FS) |
| Ripple | 0~2V, 0~10V, -10~10V, 1~5V:±50mVp-p 0~20mA, 4~20mA:±25mVp-p |
| Conversion Method | D/A conversion method |
| Resolution | Equivalent to 15 bit (Depends on the scaling setting) |
| Scaling | Digital scaling |
| Response Speed | 10ms or less 0→90% Responsed (Sampling rate: 250 times/ sec.) * Response speed: 2ms±2 (1 / Sampling rate )ms or less |
* Ripple voltages are vales output when load resistance is 250Ω and current output is 20mA.
