The battery is included in the price, additional batteries can be ordered if necessary!
The DT9102 … Intrinsically Safe Digital Clock will accurately display local time in the hazardous area.
The clock incorporate a very high accuracy crystal oscillator that ensures less than 1 minute error per year (typically) at ambient temperature between 0-40 °C. Large 4 digit, 25.4 mm height liquid crystal display make the time visible at a distance.
Three different synchronisations mode are selectable in the user menu:
The clocks has 2 isolated digital outputs, which can be used for alarm signalling.
The functional parameters can be set by the front panel push-buttons, through a simple menu system: time setting, synchronisation modes, time display mode, alarm output setting, etc. The settings are protected by a two-level password against unauthorised manipulation.
The instruments has two power supply versions: battery powered (DT9102 B) and intrinsically safe 4-20 mA loop
powered (DT9102 I4).
The DT9102 … is housed in a DIN standard 144 × 72 mm ABS case with IP 65 protection from the front and IP 30 protection from the back side, for installation on the control panel.
The internal intrinsically safe battery will power the DT9102 B clock continuously for at least three years. Replacement battery units are available (BAT). At 20 °C replacement batteries only lose about one percent of their charge each year, so it is practical to stock a spare on-site. By replacing the battery or by switch off the 4-20 mA loop the clock save the time for 60 minutes.
| Safety data: | |
|---|---|
| The connection terminals of the supply voltages are isolated from each other, the isolation is in compliance with the standard EN 61010-1, taking into consideration the following: | |
| Pollution level: | 2 |
| Measurement category: | II |
| Intrinsical safety data: | |
| Certificate: | BKI 18 ATEX 0007 X |
| Protection marking: | DT9102 B II (1) 2G Ex ia IIC T5 (-20 °C < Ta < +60 °C)DT9102 I4 II (1) 2G Ex ia IIC T6 (-20 °C < Ta < +60 °C) |
| Display: | |
| Display: | 4 digit LCD, 25.4 mm character height |
| Time display: | HH : MM |
| Range: | 00:00 - 23:59 |
| Error: | ±1 min. / year @ 0 °C < Ta < 40 °C (typically) |
| Display refreshing time: | 1 sec. |
| Output parameters: | |
| Output: | 2 digital outputs |
| Output type: | optically isolated passive switching transistor |
| Load rating: | 10 V, 16 mA max. (Ex safety data!) |
| Manual control: | |
| Manual control: | 3 push-buttons on the front cover |
| Power supply: | |
| Power supply: | Intrinsically Safe 4-20 mA loop-powered (DT9102 I4) Intrinsically Safe 4.5 V battery pack (DT9102 B) |
| Maximum back-up time: | 60 min. |
| Ambient conditions: | |
| Operating temperature range: | -20 - +60 °C |
| Relative humidity: | 90% (max., non-condensing) |
| Place of installation: | potentially explosive area (zone 1, zone 2), safe area |
| Electromagnetic compatibility (EMC) accordance with the standard EN 61326 |
|
| Immunity: | industrial area |
| Noise emission: | Group 1, Class B |
| General data: | |
| Housing: | DIN standard ABS case, installable as a panel instrument |
| Connection: | push-in direct connections |
| Connection cable: | 0.25-1.5 mm2 |
| Dimensions: | DT9102: 144 × 72 × 73 mm (width × height × depth) |
| Weight: | 0.4 kg |
| Protection: | IP 65 (front), IP 30 (rear) |
| Detailed information see in operating instructions. The Manufacturer maintains the right to change the technical data! | |
| Leaflet of product | Operating Instruction (DT9102 B) | Operating Instruction (DT9102 I4) | ATEX certificate |
