(c) Altitude 0.0 to 10,000 feet above sea level.
(2) Storage and Transit. The equipment was tested to meet all performance
requirements as specified herein after being subjected to the following conditions
and returned to the range of operational conditions specified herein.
(a) Stored for 12 hours at 55,C.
(b) Stored for 12 hours at +60,C.
(c) Stored for 12 hours at 40,000 feet above sea level.
(3) This instrument also passed acceptance tests for shock, drop and vibration.
(4) AMBIENT TEMPERATURE EFFECT: 25,C reference. Temperature
coefficient of 0,C; ƒ0.01,C/,C. Temperature coefficient of span: ƒ0.005% of
reading per ,C.
e. OPERATING INSTRUCTIONS
(1) After having unpacked this instrument, carefully examine it and any enclosed
accessories for physical damage and compliance with Packing List. If any of the
articles are missing or damaged, inspect the packing case for signs of damage or
theft during shipment and immediately report it to carrier.
(2) Remove the four (4) 6-32 screws on the bottom of the case. Holding the case
together, turn over and gently remove top cover.
(a) Visually make sure that all wires to battery and to transformer are in
(b) Check that the display board is seated in its connector properly
NOTE: There is no need to perform any adjustments to the instrument. The instrument is
factory calibrated and burned in, prior to ship- ment, and is designed to remain in
calibration for a minimum of twelve (12) months before recalibration is required.
(3) Back Panel connectors and switch.
(a) Sensor input connector: the input sensor is connected here. Be sure to
match the sensor with the unit, as each unit is calibrated to a particular
(b) Analog out connector: a buffered analog output (3 mA. maximum) of 1
mV per degree is available on this connector. The analog output
corresponds to the engineering units of the readout.
(c) Input voltage selector switch: This switch is a slide switch that changes
the battery charging circuitry from a 115V, 60 Hz. input to a 220V, 60 Hz.
(d) Power cord: The power cord connects the line power to the battery
charger, through a 1/8 AMP Slo Blo fuse.
NOTE: Whenever the power cord is connected to line power, the battery is charged,
regardless of power switch state.
(4) Front panel controls and indicators.
(a) Power switch: The power switch disconnects the battery power from
the DTI circuitry and therefore turns the unit off.
NOTE: The power switch does not disconnect the line power from the battery charger.
(see 5e (3) (c).
(b) Indicators: There is a small 1.e.d. behind the ",F" and the ",C"
marking on the front panel to indicate the engineering units of the readout.