YOKOGAWA vigilantplant DM8, Руководство пользователя

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<4. OPERATION>
4-4
IM 12T03A01-02E
Digital signal *1
Measuring mode (DSPL)
Measuring mode (DSPL)
Maintenance mode (1)
(MAINT)
Maintenance mode (3)
(MAINT)
Transfer to
Calibration mode
(1)
(2)
(3)
While in calibration
computation
Calibration mode
function No. transfer
or waiting for mode
transfer
Calibration mode (CAL)
Function No.
transfer (2)
Calibration start
Calibration end
Output stop
Measured
value
Hold
Hold
*2
Measured
value
Measured
value
Measured
value
Measured
value
Hold
Analog signal
(1)
(2)
(3)
Measured
value
Hold
Hold
Measured
value
Measured
value
Measured
value
Hold
*1: The density value after temperature conversion, density value at the measuring temperature and measuring liquid temperature
are transmitted in digital form. (Only the density value after temperature conversion is transmitted in analog form.)
*2: The density converter displays CAL-1 or CAL-2.
Figure 4.3 Digital and Analog Signal Output Statuses
Eight function Nos. from ‘3’ to ‘A’ are provided in the calibration mode (see Table 4.1). Among
them, ‘6’ and ‘A’ are to specify the calibration computation and others are to input data required
for the calibration.
Function No. ‘3’: Sets density of calibration solution 1
Density value (g/cm 3 ) of a calibration solution for one-point calibration or 1st calibration of
two-point calibration can be input. The input density is a data at the reference temperature.
(Note): If relation between temperature and density is well known, a density at a temperature can be set. However, the density data at
the reference temperature is recommended to achieve accurate calibration.
Function No. ‘4’: Sets temperature of calibration solution 1
Input the temperature of the calibration solution 1 of which density at the reference
temperature is set at ‘3’.
Function No. ‘5’: Sets temperature coefficient of calibration solution 1
Enter the value which is -100000 times the temperature coefficient (g/cm 3 /°C) of the liquid
for calibration 1.
(Note): The temperature coefficient -0.00086 g/cm 3 /°C becomes the value 086.
Function No. ‘6’: Starts calibration 1 (press SET key)
Pressing “SET” key executes calibration computation, or also executes the first calibration
of the two-point calibration.
(Note): For calibration procedure, refer to Section 4.4.
Function No. ‘7’: Sets density of calibration solution 2
Density data (g/cm 3 ) for the 2nd calibration (calibration solution 2) of two-point calibration
can be input. As a rule, the input density is data at the same reference temperature as that
of ‘4’.
(Note): If relation between temperature and density is well known, a density at a temperature can be input. However, the density data at
the reference temperature which is same as that of ‘4’ is recommended to achieve accurate calibration.
Function No. ‘8’: Sets temperature of calibration solution 2
5th Edition : Dec. 11, 2015-00