16
TWITE INSTRUMENTS
THERMOSTAT MODEL TD-196 OPERATING MANUAL
KEYBOARD FUNCTIONS CONT..
FUNCTION NUMBERS
1 =
Temperature set point (4 set points with time relevance).
2 =
Differential set point (the amount of temp change for on/off).
3 =
Set point usage Times (4 times with set point number relevance).
4 =
High Alarm (4 set points with time relevance).
5 =
Low Alarm (4 set points with time relevance).
6 =
High Alarm Delay (delay in minutes before the alarm is on).
7 =
Low Alarm Delay (delay in minutes before the alarm is on).
8 =
Defrosts (sets from 1 to 8 defrosts per 24 hours).
9 =
Defrost Auto On Off (allows auto defrosts or no auto defrosts).
10 =
Defrost Manual On Off (allows a manual defrost, resets to off
when finished the defrost).
11 =
Control On Off (allows auto control or off, all turned off).
12 =
Fans Continuous or Automatic (on all the time or only while refrig).
13 =
High Alarm Override (stops high alarm from activating if set to off)
14 =
Low Alarm Override (stops low alarm from activating if set to off).
15 =
Differential Type (whether set point is in the Middle, Top or Bot).
16 =
Power On Delay (staggers start up of rooms after a power failure).
17 =
Unit Number (for identifying each unit when printing).
18 =
Cooling Heating (used to set the unit for Cooling or Heating mode).
19 =
Time (sets the real time clock hrs,min,sec,day,date,month & year).
20 =
Calibrate Real Time Clock (adjusts real time clock accuracy).
21 =
Print (for setting & printing functions).
22 =
Data Log (sets the time (& channels) to data log into memory).
23 =
Password On Off (makes the password required active or inactive).
24 =
Password Change (allows a new password to be set).
25 =
Pump Down (allows the pump down of evaporator after turn off).
26 =
Display Intensity (varies the brightness of the display).
27 =
Daily Set Points (which set points may used for each day of week).
28 =
Line Feed Yes/No (whether a unit does a line feed when printing).
29 =
Channel Connected (sets which channels are present on the unit).
30 =
Channel To Scan (which channels are scanned in the scan mode).
31 =
Scan Time (the time between each channels display in scan mode).
32 =
Scan Yes No (whether the unit is to scan or not).
33 =
Control Channel (which chan is used for control and/or averages)
34 =
Reset Maximum & Minimum (resets all to current time & temp).
35 =
Baud rate set (sets the baud rate, stop bits = 1 and no parity).
36 =
Long Term or Pull Down mode set (sets the suction sol control).
