Campbell CR510 Manual do Operador descarregar pdf (Página 111)

SECTION 9. INPUT/OUTPUT INSTRUCTIONS

9-7

CAUTION: Never excite the 207 probe with

DC excitation because the RH chip will be

damaged.

A 1 before the excitation channel number (1X)

causes the channel to be incremented.

The maximum RH polynomial error is given

here:

Curve Fit Error --

Range (%RH) Error (%RH)

10 - 100 +4

15 - 94 +1

PARAM. DATA

NUMBER TYPE DESCRIPTION

01: 2 Repetitions

02: 2 First single-ended

channel for RH

measurement

03: 2 Excitation channel

number

04: 4 Input location for first

compensating

temperature

measurement (°C)

05: 4 Input location for first

R.H. measurement

06: FP Multiplier

07: FP Offset

Input locations altered: 1 per instruction

*** 16 TEMPERATURE FROM ***

PLATINUM R.T.D.

FUNCTION

This instruction uses the result of a previous RTD

bridge measurement to calculate the temperature

according to the DIN 43760 specification adjusted

(1980) to conform to the International

Electrotechnical Commission standard. The range

of linearization is -200° to 850°C. The error in the

linearization is less than 0.001°C between -100°

and +300°C, and is less than 0.003°C between -

180° and +830°C. The error (T calculated - T

standard) is +0.006° at -200°C and -0.006° at

+850°C. The input must be the ratio R/Ro, where

R is the RTD resistance and Ro the resistance of

the RTD at 0°C (Sections 7.9 and 7.10). A

multiplier of 1 and an offset of zero yields

temperature in degrees Celsius.

PARAM. DATA

NUMBER TYPE DESCRIPTION

01: 2 Repetitions

02: 4 Input location of R/Ro

03: 4 Input location of result

04: FP Multiplier

05: FP Offset

Input locations altered: 1 per repetition

*** 17 INTERNAL TEMPERATURE ***

FUNCTION

This instruction measures the temperature (°C)

of a thermistor on the CR510 analog board.

PARAM. DATA

NUMBER TYPE DESCRIPTION

01: 4 Input location number

for temperature

Input locations altered: 1

*** 18 MOVE TIME TO INPUT LOCATION ***

FUNCTION

This instruction takes the current time in

seconds into the minute, minutes into the day,

or hours into the year and does a modulo divide

(see Instruction 46) on the time value with the

number specified in the second parameter. The

result is stored in the specified input location.

Entering 0 or a number which is greater than

the maximum value of the time for the second

parameter will result in the actual time value

being stored.

PARAMETER 1 CODES

Code Time Units

0 Seconds into minute (maximum 60)

1 Minutes into current day (maximum

1440)

2 Hours into current year (maximum

8784)

3 Store yr,day,hr,min,sec into 5 input

locations (modulo divide not used)

PARAM. DATA

NUMBER TYPE DESCRIPTION

01: 2 Time Code

02: 4 Number to modulo

divide by

03: 4 Input location number

Input locations altered: 1 or 5

1 2 ... 106 107 108 109 110 111 112 113 114 115 116 ... 263 264

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