SIZE: Approximately 5" x 4" x 2"
BATTERY LIFE: Greater than 1000 hours
OPERATING TEMPERATURE: 20 degrees F to 160 degrees F
ONE YEAR GUARANTEE: Your ZERON is backed by a demonstrated, 11 year record of after-the-sale service and assistance. Not built by a "here today, gone tomorrow" weekend operation, ZERON products hold their value and provide years of dependable rally use.
The 88's memory is a first in first out system which can keep up to 16 checkpoint times in the correct order of arrival. The following example will demonstrate how it works. After the 88 is set and running, push ENTER. The display will immediately split (hold) the time shown when the button is pressed. The colon will appear over the decimal point to indicate a split is in memory. In this case, it's the one you are now seeing. For checkpoint timing, you would record this time in your log. Now push RECALL. The display returns to time of day with the colon off (memory empty) and split time discarded. This would be the normal checkpoint sequence. Should a second car arrive while the first car's time is still being logged, push ENTER again. The second split time will go into memory directly behind the first one. When RECALL is pushed this time, the second car's time will now appear in the display. After logging the time, push RECALL to discard the time and come back to time of day (colon off). Had more cars arrived at any time during the above cycle, push ENTER for each one. Each time goes into memory directly behind the preceding one and is called up in order by RECALL. When you have several cars back to back, it's easiest to call up and log the times all at once as opposed to doing one car at a time as they pull up to the workers' area. When their times are logged, the 88 is empty and ready for following cars.
The 88's memory can hold up to 16 splits without need for recalling (clearing) one. Once the memory is full, additional ENTERs are ignored. This condition is indicated by having decimal points appear between all the digits. Pushing RECALL with an empty memory has no effect.
A remote jack is located on the left side of the case. A worker located at the timing line can enter arrival times by closing a normally-open, momentary switch. This switch should be wired to the plug supplied with your 88. Connect one conductor to the center pin, the second to the plug body. By turning the rotary switch to REMOTE, splits from either the remote or ENTER push buttons will be indicated by a short, audible beep from the 88. You may use the beeper whether or not you want to enter times remotely.
To check the batteries' condition, turn the rotary switch to LO BAT. If the display blanks, the batteries are GOOD. When the display stays on, the batteries need changing. Don't worry if you check the batteries during a rally and discover that they now are indicated as low. Once this happens, several hundred hours still remain over and above the rated life.
Never leave the 88 on so that it completely drains it batteries. The 88's electronics will eventually stop working but sufficient voltage may remain to run the display. This condition can cause the display's digits to polarize in a permanently ON state.
To install new batteries (or remove them during long term storage), back out the screws in each corner of the front panel and pull the 88 from its case. Follow the polarity diagram in the battery holder when inserting the replacements.