@retiredcaps: I don't really know how much it is out of range because I do not have high end multimeters, voltage standards and so on. But to get an idea of it I did some measurements with four multimeters.
The number in front of the following results is the number of the multimeter as you can see here:

Multimeter 1: MASTECH MS8229 (original condition)
Multimeter 2: MASTECH MS8229 (original condition)
Multimeter 3: UNI-T UT58C (original condition)
Multimeter 4: MASTECH MS8229 (opened, trim pots turned)
Here are the results of some measurements:
DC Voltage:(All multimeters connected to the same potential.)1. 190.5 mV
2. 190.7 mV
3. 189.9 mV
4. 190.7 mV
1. 1.884 V
2. 1.889 V
3. 1.883 V
4. 1.894 V
1. 19.52 V
2. 19.61 V
3. 19.51 V
4. 19.70 V
1. 60.0 V
2. 60.3 V
3. 60.0 V
4. 60.4 V
AC Voltage:(All multimeters connected to the same potential.)1. 1.043 V
2. 1.043 V
3. 1.044 V
4. 1.037 V
1. 18.87 V
2. 18.90 V
3. 18.90 V
4. 18.87 V
1. 194.5 V
2. 195.1 V
3. 199.8 V
4. 194.0 V
1. 277.2 V
2. 278.1 V
3. 278 V
4. 276.6 V
Frequency:(All multimeters connected to the same potential.)1. 49.99 Hz
2. 49.99 Hz
3. 0.047 kHz
4. 49.99 Hz
1. 0.999 kHz
2. 0.999 kHz
3. 1.000 kHz
4. 0.999 kHz
1. 18.99 kHz
2. 18.99 kHz
3. 19.06 kHz
4. 18.99 kHz
DC Current:(All multimeters connected in series.)1. 35.91 mA
2. 36.20 mA
3. 36.0 mA
4. 36.37 mA
1. 188.2 mA
2. 189.3 mA
3. 188.6 mA
4. 190.1 mA
1. 2.912 A
2. 2.933 A
3. 2.94 A
4. 2.931 A
AC Current:(All multimeters connected in series.)1. 0.402 A
2. 0.404 A
3. 0.41 A
4. 0.400 A
1. 3.024 A
2. 3.034 A
3. 3.06 A
4. 3.015 A
Resistance:(I used a 1.82 kOhm, 1% resistor. LCR/ESR-Meter measured 1.8187 kOhm.)1. 1.818 kOhm
2. 1.816 kOhm
3. 1.817 kOhm
4. 1.820 kOhm