Seaward DP6 - Manual (Page 7)

Operating Instructions Thermocouple Calibrator Type DP6
6
CASE DESIGN
The DP6 is housed in a high impact plastic case with a sealed switch membrane for
the front panel. The rear of the instrument incorporates two low thermal emf copper
terminals for connection; a five-pin DIN socket for the RS232 connection, and a 2.5
mm. power inlet socket for the battery charger. The case is held together by 4 screws
located beneath the rubber feet.
MAINTENANCE
Normally no maintenance is required other than recharging the battery. Use only the
charger provided, or one approved by CROPICO. To clean the DP6, wipe it carefully
with a moist cloth and avoid aggressive detergents or solvents.
Servicing and calibration must only be performed by expert trained staff.
Always ensure that repairs will not alter any of the design characteristics to the
detriment of safety and performance. Spare parts to be installed must correspond to
the original parts and be properly fitted to the factory state.
TECHNICAL SPECIFICATION
Limits of error apply for 1 year at 20 degrees centigrade ± 1 deg. C
Temperature coefficient : typically 17 ppm/Deg C +0.2µV/Deg.C
REFERENCE JUNCTION: Referenced to 0 Deg. C and with three
operating
modes. Automatic with internal
sensor, Off (= to 0 Degrees C), and Manual entry
via keyboard). UNCERTAINTY:
Better than ±0.1 Deg. C at +20 Deg. C
DEVIATION: 0.01 Deg.C/Deg.C over the range 0 to
+50 Deg.C
MANUAL INPUT RANGE: The reference junction reference value may also
be set via the keyboard over the range 0 ...+100
Deg. C.