The RM25G and RM25N are hybrid recorder allows digital printout on analog trend on 250 mm wide chart paper. The RM25G offers 360 x 288 mm din size panel and the RM25N replaces former model 25R recorder.
Hybrid Recorder – Ohkura RM25G (N)
Features
- Contact free feedback potentiometer and input selector
- Easy channel identification by mark printer
- Both trend & data logging printouts
- Dielectrics strength of 2000v between power input and ground
- Abundance of printout function
- Wide range of power supply voltage
- Optional IC card
Specification
| Number of inputs | 6, 12, 24, or 30 dot point |
| Type of input | |
| DC Voltage | 4mVDC min., 20VDC max |
| Direct thermocouple | K, T, J, E, B, S, R, G, C, N, PR40-20,PLII,U,L,Au-Fe |
| RTD | Pt100Ω,Pt50Ω,JPt100Ω,Cu10Ω (at 0°C), Cu10Ω (at 25Ω) |
| Current | 4 ~ 20mA |
| Conductivity | 100μS/m ~ 2000mμS/m |
| Recording width | 250mm calibrated |
| Recording accuracy | ± 0.5% max |
| Open input protection (option) | Up scale with mV or TC input |
| Chart Speed | 6, 12, 24 & 30 point model; 1 ~ 1800mm/h |
| Chart paper | Fold chart standard, 23m long, 286mm width |
| Data print color | Purple (Red on alarm) |
| Dot print interval | 5s/ch |
| Input sampling | 5s/ch |
| Print head | Dot point models; 6 color ribbon cartridge and 5mark |
| Alarm | 6 Set points per channel |
| Alarm output (option) | 2 relays drive per setting. Form-C 250VAC 3A /125VDC 0.5A /30VDC 3A max., Hysteresis 0.5 ± 0.2%, Setting accuracy ± 0.5% |
| Input impedance | 10MΩ min. In mV/TC Input. 200kΩ min. In mV/TC Input with burn-out, 1MΩ min. In Volt Input and 100Ω min. In mA Input |
| Source impedance | 10kΩ max. in mV/TC input, 200Ω max. in mV/TC Input with burn-out, 1kΩ max. In Volt input and 10Ω max. per wire in RTD input |
| CMRR | 140dB min. in 50/60 ± 0.5Hz |
| NMRR | 60dB min. in 50/60 ± 0.5Hz |
| Isolation resistance | Input/ground 500VDC, 20MΩ min |
| Dielectric strength | Power supply voltage/ground 2000VAC,1-minute duration. Input/ground 500VAC, 1-minute duration |
| Power supply voltage | 85 ~ 264VAC, 45 ~ 65Hz ± 5% |
| Allowable instant power failure | 50ms max |
| Power consumption | 70VA max |
| Vibration resistance | 1m/s2 max., 10 ~ 60Hz |
| Shock resistance | 2m/s2 max |
| Operating conditions | -5 ~ 50°C. 35 ~ 85%RH |
| Dimensions | RM25G; 360 x 288 x 340 mm RM25N; 406(w) x 325(h) x 340(d) mm |
| Weight | RM25G ;17.0 kg max RM25N ; 19.0 kg max |
| Mounting | Panel mount Allowable backward inclination : 30° |
| Material | Case —- Steel plate Door frame —- Aluminum die casting |
| Color | Case —- Metallic silver Door frame —- Black (Standard) |
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