The battery is included in the price, additional batteries can be ordered if necessary!
The DT9100 … 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 (DT9100 B) and intrinsically safe 4-20 mA loop powered (DT9100 I4).
The DT9100 … is housed in a moulded polycarbonate case which is dust-tight and houseproof to IP 65 to allow for installation in the field or on the control panel.
The internal intrinsically safe battery will power the DT9100 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: | DT9100 B II (1) 2G Ex ia IIC T5 (-20 °C < Ta < +60 °C)DT9100 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 (DT9100 I4) Intrinsically Safe 4.5 V battery pack (DT9100 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: | moulded polycarbonate case, installable as a field or panel instrument |
| Connection: | IP 65 cable entry, push-in direct connections |
| Connection cable: | 0.25-1.5 mm2 |
| Dimensions: | field instrument: 167 × 111 × 71 mm (width × height × depth) panel instrument: 167 × 87 × 95 mm (width × height × depth) |
| Weight: | 0.5 kg |
| Protection: | IP 65 |
| Detailed information see in operating instructions. The Manufacturer maintains the right to change the technical data! | |
| Leaflet of product | Operating Instruction (DT9100 B) | Operating Instruction (DT9100 I4) | ATEX certificate |
