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Aetna Digital Tachometers
SWITCH SETTING INSTRUCTIONS
For use by Factory Authorized Personnel Only
Version
'-SH'
PPR
Switch Position
PPR
Switch Position
1 2
3
4
5 6
7
8
1
2"
3
4 5 6
7 8
154
on
off off
on
on off
on
off
205
on on
off off
on on
off on
155
on
off off
on
on off
on
on
206
on
on off
off on
on
on
off
156
on off
off
on on
on
off
off
2!J7
on
on
off off
on
on
on
on
157
on off off
on on
on
off
on
200
on
on off
on
off
off off
off
158
on off
off
on
on
on on
off
200
on
on
off on off
off
off on
.159
on off off
on on
on
on
on
210
on
on
off on
off
off on
off
100
on off
on
off
off off
off
off
211
on on
off
on off
off
on on
161
on
off on
off off
off
off
on
212
on
on
off on
off
on off
off
162
on
off
on off
off off
on
off
213
on on
off
on off
on
off on
163
on
off on
off off
off
on
on
214
on
on off
on
off on
on
off
164
on off
on off
off
on off
off
215
.on
on off
on off
on
on
on
165
on off
on off
off
on off
on
216
on on
off on
on
off off
off
166
on off
on
off
off
on on
off
217
on
on off
on
on off
off on
167 on
off on
off
off on
on
on
218
on
on off
on
on off
on off
168 on
off
on off
on
off off
off
219
on on
off
on on
off
on on
169
on off
on off
on off
off on
22!J
on
on off
on
on
on
off off
170
on
off
on off on
off
on
off
221
on
on off
on
on on
off on
171
on
off .on
off
on off on
on
222
on
on off
on
on on
on
off
172
on
off
on off
on
on off
off
223
on
on
off on on
on on on
173
on
off on
off on
on off
on
224
on on
on
off
off off
off off
174
on off
on
off on on
on
off
225
on on
on
off off
off off
on
175 on
off on
off on on
on
on
226
on on
on off
off off
on
off
176
on
off
on on
off off
off
off
227
on
on on
off off
off on
on
177
on
off on on
off
off
off on
228
on on
on
off off on
off
off
178
on off
on
on off
off
on off
229
on on
on off
off
on, off
on
179
on off
on on
off off
on on
23J
on
on on
off
off on on
off
180
on
off on on
off on
off off
- 231
on on on
off off
on on
on
181
on
off on
on off
on
off on
232
on
on on
off
on off
off off
182
on off
on on
off on
on
off
233
on on on
off
on
off off
on
183
on
off on on
off
on on
on
234
on
on
on off on
off
on
off
184
on off on
on
on
off off off
235
on . on
on
off on
off on
on
185 on
off
on on on
off
off
on
236
on on on
off on
on
off off
186
on
off on on
on off
on
off
237
on on
on
off
on on off
on
187 on off
on
on on
off on
on
238
on
on
on
off on
on
on off
188
on
off on on
on on
off off
239
on on on
off on on
on
on
100 on
off on
on on
on
off on
240
on
on on on
off
off
off off
100
on
off on on
on on
on
off
241
on on
on on
off
off off
on
191
on off on
on on
on
on on
242
on on
on
on off
off
on off
192 on on
off off
off
off off
off
243 on
on
on
on off
off on
on
193
on on
off
off off
off
off
on
244
on on
on
on
off on
off
off
194
on
on
off
off
off off on
off
245
on on
on
on
off on
off on
195
on on
off off
off
off on
on
246
on on
on
on
off on
on off
196 on
on
off off off on
off
off
247
on
on
on on off
on on
on
197
on on
off
off off on
off on
248
on . on
on on
on
off off off
100
on on
off off
off on on
off
249
on on
on
on on
off off
on
100 on on
off
off
off
on
on on
2f()
on
on
on on
on off
on off
2!JO
on on
off off on
off
off off
251
on on
on on on-
off on
on
2!J1 on
on
off
off
on
off off on
252
on
on
on
on on on
off
off
2!J2
on on off off on
off on
off
253
on
on on on
on on
off
on
2!J3 on
on off off on
off
on on
254
on
on
on
on on
on on
off
204
on on
off off on
on off
off
255
on
on on
on
on
on. on
on
Procedure: Position the switches according to the table using a thin stylus such as the metal
1Ir .froma all point pen. Care should be taken to use only moderate pressure in actuating the
mdlvldualsWitchesto avoid damaging them. Use of plenty of light and magnification can be
helpful. Switch#1 is on the left, #8 on the right; up is on and down is off.